Berge



(No1/101ml.)

J, KINDLEBERGER.

GLINDMETBR.

N0. 313,872. PatentedMar. 17, 1885.

Nrrn Sterns arnr erica.

JEFFERSON KINDLEBERGER, OF LOS ANGELES, CALIFORNIA, ASSIGNOR OF ONE-HALFTO ALPHEUS Y'ALTER SCOIT, OF SAME PLACE.

CLIVNOMETER.

SPECIFICATION forming part of Letters Patent No. 313,872, dated March17, 1835.

Application filed November S, i884. (No model.)

To @ZZ wibo/n, it 1mb/f concern-e:

Be it known that I, JEFFERSON KINDLE BERGER, a citizen of the UnitedStates, residing at Los Angeles, in the county of Los Angeles and Stateot' California, have invented a new and useful Improvement inClinometers, of Which the following is a specification.

My invention relates to that class of clinometers in which a pointer isactuated by a weight Io to indicate upon a graduated plate theinclination ofthe surface tested.

The object of my invention is to secure great sensitiveness vin thepointer, to overcome vibration, and to adapt my device for conven- I5ient insertion in any level-stock or straightedge of sufficient size toreceive it. I accomplish these objects my means ofthe device describedherein, and illust-rated iu the accompanyng drawings, in Which- Figurelis a view of a level-stock fitted with my device. Fig. 2 is a plan viewof the top ofthe same. Fig. 3 is a rear view of my device separatedfroin the stock. Fig. 4 is a vertical crosssection of the saine on theline m mi. Fig. 5 is a rear elevation of the graduated plate E and asection of the same on line mx. Fig. 6 is an elevation of the glass cupG and a section ofthe same on line y y. Fig. 7 is a View of thecap-piece C and a section of the same on line e e. Fig. 8 is an insideor rear View of the index-plate and blades.

Numerous devices have been heretofore constructed in which weights havebeen employed to actuate a pointer to indicate the degree of inclinationupon a graduated plate; but the inertia of the weights heretofore usedrequired a considerable change of inclination before the position of thepointer would be changed, and would cause the pointer to vibrate forsome time after the clinometer had become stationary. To overcome theinertia readily and to prevent vibration, I use a fluid Weight toactuate the pointer, as hereinafter set forth.

To construct my device I provide a circular cup, G, of transparentglass, and tabrass cap, C, upon it, so as to retain any fluid placed inthe cup. I then fasten a graduated plate,

F, upon a perpendicular cross the arms of which are thin blades D, equalin width to 5o the depth of the cup G. This plate with its blades isthen mounted upon a pivot, P, projecting from the centerot'the innerside of the cap C, a hole, P', being provided through the center ofthecross to receive it. The cup is then secured to a graduated annularplate, E, 5 of brass or other suitable material, the bottom of the cupfacing the opening in the plate. An opening, Q, closed by a screw-cap,J, is provided in the cap C, through which sufficient alcohol or proofspirits is poured to lill the 6c vcup half-full. The screw-cap is thenreplaced, and my device is ready for insertion in its stock or straightedge. This is done by boring in the stock a circular hole of the size ofthe cup G, with its cap C, and countersinking a circle round it toreceive the graduated plate E, which projects over the edge of the cupto receive the screws S, which 'fasten it into the stock. An opening isalso made in the top of the stock, so that the pointer I can 7( be seenfrom that side. The cup with its plate is then secured in the stock bythe screws S S. The opening in the top of the stock is covered with aplate of glass, and the device is ready for use. The perfect mobility ofthe i'luid causes it to change its position at the slightest movementot'the device, and acting upon the lower and the two horizontal blades ot'the cross, itactuates the pointer and the graduated circle to indicatethe change of SC position, and as all waves are suppressed by the twohorizontal blades, and. the fluid can only be slightly agitated by anymotion, it comes to rest almost simultaneously with the stock. Theoutergraduated plate, E, is marked off intoconvenient parts ot' a circle, andthe innerplate, F, is also graduated, a portion of it, as at V, beingmarked as a. vernier plate,

to indicate, in connection with the plate E, degrees or smallerdivisions, if desired. The 9c plate in the top of the stock is marked toindieate the point at which the pointer Will stand when the stock islevel. The circle F and the blades ofthe cross should be thin, so thattheir weightwillvnot impede their movement.

This device can be accurately mounted in its stock by scribing aline atright angles across the stock and making the marks upon the circle E,indicating ninety degress and 1c one hundred and eighty degrees,coincide,

therewith. The upper blades attached to the pointer or needle may bedispensed with, as the fluid acts only upon the lower and the horizontalblades. The circle F may also be dispensed with, but care must beexercised to make the blades and the pointer accurate, and the bladesshould be made stiff enough to retain their position.

I do not claim the use of a uid confined in a circular chamber toindicate a level as being new; but

What I claim as new, and desire to secure by Letters Patent, is-

1. In a clinometer, an index or pointer mounted upon a pivot in acircular chamber and having one or more blades connected therewith, andplaced in contact with a Huid contained in such chamber, substantiallyas set forth, whereby the motion of the fluid is made to actuate thepointer to indicate th angle of inclination.

2. A clinometer consisting of the following elements: the graduatedannular'plate E, the cup G, cap C, pivot I), blades D, graduated circleF, pointer I, and the straight-edge A,

. all being in combination, substantially as and `for the purposeset'iorth.

3. In a clinometer, apointcr mounted upon a pivot and connected with ablade or blades placed in contact with a iiuid, substantially as shown,whereby the motion of the fluid in seeking its level is made to actu atethe pointer to indicate the inclination.

4. In a clinorneter, a movable graduated plate mounted upon a pivot inacliamber and having blades attached thereto, such blades being incontact with a Huid contained in such chamber, the plate being incombination with a stationary graduated plate and a straightedge, asshown, whereby the movementot' the fluid in seeking its level is made toactuate the movable graduated plate and change its position to indicatethe angle of inclination.

5. In a clinometer, substantially as described, a chamber for containingthe pointers and their actuating fluid-Weight, consisting ot' the glasscup G and the cap C, with its pivot P and the opening Q, for the purposeset for th.

JEFFERSON K INDLBERGER.

Witnesses:

Jas. R. TowNsnN'n, ALFRED I. ToWNsnND.

